EP0900467A1 - Method and device for generating electrical energy for operating small electrical appliances - Google Patents

Method and device for generating electrical energy for operating small electrical appliances

Info

Publication number
EP0900467A1
EP0900467A1 EP97923986A EP97923986A EP0900467A1 EP 0900467 A1 EP0900467 A1 EP 0900467A1 EP 97923986 A EP97923986 A EP 97923986A EP 97923986 A EP97923986 A EP 97923986A EP 0900467 A1 EP0900467 A1 EP 0900467A1
Authority
EP
European Patent Office
Prior art keywords
function
energy
electrical
spring
manual actuation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97923986A
Other languages
German (de)
French (fr)
Inventor
Marco Dr. Brandestini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0900467A1 publication Critical patent/EP0900467A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00579—Power supply for the keyless data carrier
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00785—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by light
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/076—Key stroke generating power
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/03—Application domotique, e.g. for house automation, bus connected switches, sensors, loads or intelligent wiring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/14—Protecting elements, switches, relays or circuit breakers

Definitions

  • the invention relates to a method and a device for generating electrical energy for operating small electrical devices such as remote controls, pocket calculators, door openers, etc., according to the preambles of claims 1 and 7, respectively.
  • the energy supply of small electrical devices independent of the network is provided by primary batteries or accumulators. From an ecological point of view, however, more and more attempts are being made to switch to alternative energy sources. Solar cells are therefore often used to supply clocks and computers with energy, but these are buffered by a secondary battery in the form of a rechargeable battery or so-called super capacitor.
  • WO 94/02776 describes a hand-operated signal generator which is used on the one hand as a lamp and, moreover, can also emit an acoustic signal which is generated by means of a piezo transducer.
  • a flywheel generator is used, which is put into operation by powerful pumping with the whole hand.
  • a disadvantage of this prior art is that batteries or rechargeable batteries are still required for the energy supply, or the known devices, which are operated without batteries or rechargeable batteries, cannot be used with very small electrical devices such as remote controls, pocket calculators, etc. which are only operated by finger pressure.
  • the invention is therefore based on the object of providing a method and a device for generating electrical energy for the operation of small electrical devices in which the need for a battery, rechargeable battery or supercapacitor is largely or completely eliminated.
  • the force required for operation of the electrical small APPARATE electric power is generated at least partially from the supply for manual Actuate the ⁇ ginasausloseelements of the energy used.
  • some or all of the function keys for example channel selection keys, can be such that the required energy for the transmission pulse is generated simultaneously by pressing one of these function keys. It is therefore important that no extra lever, pump or crank actuation is required to generate energy in the method according to the invention, but that the function activation element itself, for example a channel selection button, is used to generate energy.
  • the function triggering element for example a push button
  • mechanical deformation of the small electrical device occurs elsewhere, for example on the floor, and this mechanical deformation is used to generate the electrical energy.
  • a switch acting as an infrared transmitter can be attached to the wall or to pieces of furniture without additional cabling or the use of batteries in order to be able to switch a ceiling lamp on and off remotely, for example.
  • the method according to the invention thus offers the particular advantage that batteries for the power supply of small electrical devices can either be largely or completely eliminated, as a result of which the environmental impact of batteries is reduced. Furthermore, in contrast to the power supply with solar cells, the method according to the invention is independent of daylight. It is also of particular advantage that the energy required to operate the small electrical device is immediately available when the function trigger button is pressed, and a so-called "cold start" is possible without first charging a capacitor. With the method according to the invention, a cost-effective alternative or supplement to battery-operated systems can also be realized. In this case, no change is generally required on the receiver side, so that simple retrofitting options are available.
  • an energy store the stored one, is loaded by the manual actuation of the function triggering element Energy is used to operate the small electrical device.
  • an energy store can be an oscillating spring, for example in the form of an oscillating armature, or a miniature flywheel which is caused to oscillate by actuating the function-releasing element.
  • the maximum possible amplitude for the transmission of the transmission signal is constant per transmission pulse. According to an advantageous embodiment of the invention, therefore, an electrical energy with an output power which is at least substantially constant within a predetermined period of time is generated by means of the energy delivered by the energy store.
  • the electrical energy required to operate the electrical clamping device is obtained from the energy applied with a single manual actuation of the function activation element. This means, for example, that a single actuation by means of a finger is sufficient to generate the electrical energy required to perform the switching function. On the other hand, printing with the whole hand or "pumping", ie repeated printing of a function key, is not necessary.
  • manual actuation of the function-releasing element causes a permanent magnet to vibrate and is guided past an iron core wrapped in a coil.
  • the voltage source consists of a mechanical / electrical converter (generator) supplied with kinetic energy by manual actuation of the function release element.
  • the generator has at least one permanent magnet which interacts with a stator (armature) and a coil and which can be set in vibration or in a rotational movement.
  • the permanent magnet is expediently arranged on an oscillating spring attached to the stator, which can be set into vibration by means of a deflectable release spring.
  • FIG. 1a a perspective view of the generator according to the invention
  • Figure lb an alternative embodiment of the magnetic structure of Figure la
  • FIG. 1 c shows a side view of the magnetic structure of FIG. 1 b, shown in detail, with an additional release spring
  • FIG. 2 a perspective, partially cutaway view of an infrared remote control for, for example, television or radio devices, with a built-in device according to the invention
  • Figure 3 is a perspective, partially cutaway view of a key with built-in device according to the invention.
  • FIG. 4a a graphic representation of the current flowing in the generator with an ohmic load, which occurs when a function triggering element is actuated and a control pulse sequence is emitted,
  • FIG. 4b the voltage occurring at a storage capacitor
  • Figure 4c the width modulated transmit pulses
  • FIG. 5 a circuit diagram of control electronics used in connection with the device according to the invention.
  • FIG. 1 From Figure la em used to generate electrical energy generator 10 can be seen, which essentially comprises a U-shaped stator 11, an elongated coil wound around a stator leg with connecting lines 16 and a spring 13, on the top and bottom of each em permanent magnet 14 or 15 is attached.
  • the two connecting lines 16 are connected to control electronics 32.
  • the oscillating spring 13 is fastened at one end to the transverse connecting leg of the stator 11 and extends centrally between the longitudinal legs over the entire length of the stator 11. In its front free end region, the oscillating spring 13 is at a small lateral distance between the free ends or Claws lla of the stator 11 passed.
  • the two permanent magnets 14, 15 have a length which corresponds to the width of the oscillating spring 13 and are arranged on the oscillating spring 13 in such a way that they can also be guided past the mutually facing end faces of the claws 11a of the stator 11 with a small lateral distance.
  • the permanent magnet 14 located above has a north pole facing the unwound side of the stator 11, while the lower permanent magnet 15 is reversed.
  • the oscillating spring 13 is set in motion by a single deflection, then a decaying mechanical oscillation arises, the upper permanent magnet 14 and the lower permanent magnet 15 alternately stepping between the two claws 11a of the stator 11. This movement of the permanent magnets 14, 15 induces an also decaying electrical oscillation in the coil 12.
  • FIG. 1b shows a section of an alternative embodiment of a generator 10 'according to the invention, which in turn has a U-shaped stator 11 and a coil (not shown).
  • a single permanent magnet 20 is provided here, which is polarized along the longitudinal axis of the oscillating spring 13.
  • two pole shoes 21, 22 designed as double wedges are firmly connected. These pole shoes 21, 22 guide the flow in such a way that the same geometry is achieved with the single permanent magnet 20 as with the arrangement of FIG.
  • the combination permanent magnet 20 / Pole shoes 21, 22 are in turn rigidly connected to the oscillating spring 13.
  • the vibration spring 13 If the vibration spring 13 is set in vibration by a single actuation of a function release element (not shown), the vibration spring 13 together with the permanent magnet 20 and the pole pieces 21, 22 in turn carries out a decaying mechanical vibration, which in the coil 12 has a corresponding electrical Generates vibration.
  • the generator 10 'shown in FIG. 1b offers the advantage that the combination of permanent magnet 20 and pole shoes 21, 22 together with a yoke 23 can be used as an adhesive device, as shown in FIG. 1c.
  • the release spring 24 If the release spring 24 is pressed upwards from its drawn rest position, the permanent magnet 20 and the pole shoes 21, 22 will follow due to the holding force of the permanent magnet 20 and thereby deflect the oscillating spring elastically until the breakaway force is reached.
  • the yoke 23 is fastened in a tiltable manner on the release spring 24, so that it fits snugly against the pole shoes 21, 22 until it breaks loose.
  • the floating spring 13 is briefly free in order to put itself into said decaying vibration. This oscillation subsides after approx. 200 msec.
  • the release spring 24 can either be connected directly to a push button or indirectly via a mechanism be operated. In both cases, it restores the mechanical starting position after the oscillation has taken place.
  • FIG. 2 shows excerpts of a small electrical device in the form of a remote control, as used, for example, in television or hi-fi devices.
  • This remote control has a housing 30 and a keyboard 31 arranged on the top of the housing 30, which, designed as a printed circuit board, is a carrier for the control electronics 32 and an infrared transmitter diode 33.
  • some electronic components within the part shown in dashed lines are only shown as examples for the control electronics 32, but in reality they are not visible and are located within the housing 30.
  • On the underside of the keyboard 31 there are function-releasing elements in the form of keys 34, which can be operated manually by finger pressure.
  • the keyboard 31 is mounted so that it can move vertically within a circumferential groove 38 which is located on the inside of the side cheeks of the housing 30.
  • buttons 34 If one of the buttons 34 is printed, an electrical contact 35 connects a horizontal conductor track 36 to a vertical conductor track 37. As a result, as soon as the control electronics 32 are supplied, the printed button 34 can be identified in a known manner. Furthermore, the entire keyboard 31 is printed downward in the guide groove 38 by the finger pressure on the key 34. This vertical movement of the keyboard 31 is transmitted via two plate-like, horizontal rockers 41, 42 to the release spring 24 of the generator 10 'arranged inside the housing 30. These rockers 41, 42 extend laterally outwards into the region of the side cheeks of the housing. ses 30 and lie in a further inner area on support rails 39 which extend at a certain distance parallel to the side cheeks from the bottom of the housing 30 upwards.
  • FIG. 3 shows a further use of the device according to the invention on the basis of a key, for example a car key, which can control a receiver device (not shown), for example an automatic locking system or an electronic immobilizer for a car, via an infrared transmission device.
  • a key for example a car key
  • a receiver device for example an automatic locking system or an electronic immobilizer for a car
  • the generator 10 ', the control electronics 32 and the transmitter diode 33 are installed in a key handle 51.
  • the main plane of the U-shaped stator 11 ver runs essentially vertically.
  • the trigger spring 24 is actuated directly by a single button 52, whereby the oscillating spring 13 and thus the permanent magnet 20 begin to oscillate in the horizontal direction.
  • the control electronics 32 start up and send a coded infrared pulse sequence.
  • FIG. 4a shows the voltage induced in the coil 12 with an ohmic load when the oscillating spring 13 or the permanent magnets 14, 15, 20 execute the abating oscillation mentioned.
  • the voltage signal corresponds to an exponentially decaying oscillation. Because the amplitude is initially high, the following fineness can be achieved by a suitable choice of the thickness of the magnets 14, 15 or 20 or of the pole shoes 21, 22:
  • the induced voltage initially has the form of half-waves 61 which are shorter than half a period of the oscillation frequency. As a result, a reduced current is emitted despite the large amplitude and the mechanical vibration is less damped. Normal sine half-waves 62 then occur in the second decay phase, which leads to a partial compensation of the power output by the generator 10, 10 'for each phase.
  • a further possibility of obtaining a constant output power is to suitably bevel or sharpen the magnets 14, 15 or the pole pieces 21, 22.
  • the reason why the output is as constant as possible has the following reason: The aim is to convert as much of the mechanical energy as possible into electrical energy and to use it effectively in sending pulp packets. If the current output was not compensated for, but only a large storage capacity was loaded, the result was that if the voltage at this capacity fell below the value required for operation, a large amount of energy would still be stored but would not be usable.
  • FIG. 4b shows the voltage curve on an appropriate storage capacitor.
  • the storage capacitor is formed by the series connection of capacitors 73, 74, which can be seen in FIG. 5.
  • the dashed rectangle represents the energy used.
  • FIG. 4c explains one possibility of how the power output by the generator 10, 10 'can be kept constant over a predetermined period of time. This is desirable because, as already stated, the largest possible constant amplitude per transmission pulse is required for the transmission of a transmission signal.
  • the method according to FIG. 4c in addition to a suitable design of the spongy spring / stator geometry, represents an additional method of maintaining a constant electrical amplitude over a wide range despite the decaying mechanical amplitude.
  • the energy emitted per transmission pulse is kept constant by pulse width modulation.
  • the reason for this method is that the current and thus the emitted power of an infrared diode increases rapidly with the voltage applied. Since the available voltage cannot be kept constant, the energy must be balanced over the pulse duration. This is indicated in FIG. 4c.
  • the pulse width must be modulated almost inversely proportional to the square of the voltage. It It is therefore expedient to carry out the balancing of the energy flow using suitable geometric / mechanical as well as electronic means.
  • a piezoconverter would only convert this mechanical shock energy into a short, narrow electrical power peak when a button was pressed in a sudden manner, which could not be efficiently converted into a signal of a certain duration and constant amplitude.
  • the mechanical impact energy is first stored temporarily by the floating spring 13 and is emitted by the various measures in the form of a largely constant power.
  • FIG. 5 shows a circuit diagram for the infrared remote control shown in FIG. 2.
  • the central element is an integrated circuit 70, which is advantageously designed as a microprocessor.
  • the connections of the individual keys 34 are connected in a matrix arrangement to this circuit 70.
  • Reference 34 again designates the button 34 shown in FIG. 2, to which the lines 36, 37 are assigned.
  • the clock oscillator belonging to circuit 70 is not shown separately.
  • the signal output by the coil 12 invites by two diodes 71, 72 in the voltage doubler arrangement, two Kon ⁇ capacitors 73, 74. At the cathode of the capacitor 74 4b, the supply voltage is applied to the circuit 70.
  • the infrared diode 33 is pulsed by a MOS transistor 75 via the corresponding gate signal. Line 76 is used to reduce the timing in circuit 70.
  • the mode of operation of the circuit 70 is similar to that of the known ICs used for battery-operated remote controls and is therefore not described in detail.
  • a single oscillation spring 13 as an energy intermediate store, but also a double oscillator, which consists of two oscillating springs oscillating in push-pull.
  • a double oscillator which consists of two oscillating springs oscillating in push-pull.
  • the spongy spring cannot be fastened to a sufficiently large mass, for example when used in a car key. Otherwise the vibration was damped very quickly by the external components (fingers).
  • a double oscillator neutralizes the vibrations through internal coupling so that the generator remains efficient.
  • the adhesive function between the permanent magnet 20 and the release spring 24 not be performed by the permanent magnet required for generating the field, but by a permanent magnet separate from it.
  • control electronics 32 it is also possible to use the control electronics 32 a so-called dual-circuit supply.
  • the first supply system is used to supply the low-power control logic, the voltage being approximately 3 to 5 volts.
  • This first system is loaded immediately after triggering the oscillating spring 13. This ensures that the control electronics 32 can immediately begin key identification and the first pulse is transmitted with the least delay.
  • the second supply charges a larger capacitor and carries higher currents to drive the transmitting element (IR diode, piezo converter).
  • the oscillating spring 13 or release spring 24 can also be activated by means of a ratchet wheel.
  • This is particularly expedient whenever the oscillating spring is to be drawn by a rotating movement or displacement. In this way it is possible, for example, to control a toy car remotely in terms of speed and direction of travel using a joystick.
  • the X and Y positions are removed from the joystick with two simple absolute angle encoders. With each change, a pulse occurs that sends the new position.
  • a "tailless mouse" can also be realized in a similar way.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Selective Calling Equipment (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

The invention concerns a method and device for generating electrical energy for operating small electrical appliances, such as remote-controls, pocket calculators, electric strikes, etc. According to the invention, at least some of the electrical energy necessary for operating the small electrical appliance is obtained from the energy used for manual operation of the function-triggering element (34). The voltage source in the device according to the invention comprises a mechanical/electrical transformer (generator) (10') supplied with kinetic energy by the manual actuation of the function-triggering element (34).

Description

Verfahren und Vorrichtung zur Erzeugung von elektrischer Energie für den Betrieb elektrischer KleingerateMethod and device for generating electrical energy for operating small electrical devices
Die Erfindung betrifft em Verfahren und eine Vorrichtung zur Erzeugung von elektrischer Energie für den Betrieb elektrischer Kleingerate wie Fernbedienungen, Taschen¬ rechner, Turoffner etc., gemäß den Oberbegriffen der Pa¬ tentansprüche 1 bzw. 7.The invention relates to a method and a device for generating electrical energy for operating small electrical devices such as remote controls, pocket calculators, door openers, etc., according to the preambles of claims 1 and 7, respectively.
Im allgemeinen erfolgt die Energieversorgung elektrischer netzunabhangiger Kleingeräte wie Fernbedienungen, Taschen¬ rechner, Turoffner, Uhren etc. durch Primarbatterien oder- Akkumulatoren. Insbesondere aus ökologischen Gesichts- punkten wird jedoch immer mehr versucht, auf alternative Energiequellen auszuweichen. Zur Energieversorgung von Uhren und Rechnern werden daher häufig auch Solarzellen eingesetzt, wobei diese aber durch eine Sekundarbatterie in der Form eines Akkus oder sog. Super-Kondensators ge- puffert werden.In general, the energy supply of small electrical devices independent of the network, such as remote controls, pocket calculators, door openers, clocks, etc., is provided by primary batteries or accumulators. From an ecological point of view, however, more and more attempts are being made to switch to alternative energy sources. Solar cells are therefore often used to supply clocks and computers with energy, but these are buffered by a secondary battery in the form of a rechargeable battery or so-called super capacitor.
Weiterhin ist es bekannt, elektrische Kleingerate wie Fahrradlampen über Dynamos mit Strom zu versorgen, wobei rotierende Permanentmagnete eingesetzt werden, deren indu- zierte Wechselspannung direkt an die Lampe angelegt wird. Weiterhin ist in der WO 94/02776 ein handbetatiger Signal¬ generator beschrieben, der einerseits als Lampe eingesetzt wird und darüber hinaus auch ein akustisches Signal aus- senden kann, das mittels eines Piezowandlers erzeugt wird. Hierbei wird ein Schwungradgenerator eingesetzt, der durch kraftiges Pumpen mit der ganzen Hand m Betrieb gesetzt wird.Furthermore, it is known to supply small electrical devices such as bicycle lamps with electricity via dynamos, using rotating permanent magnets, the indu graced AC voltage is applied directly to the lamp. Furthermore, WO 94/02776 describes a hand-operated signal generator which is used on the one hand as a lamp and, moreover, can also emit an acoustic signal which is generated by means of a piezo transducer. Here, a flywheel generator is used, which is put into operation by powerful pumping with the whole hand.
Nachteilig ist bei diesem Stand der Technik, daß für die Energieversorgung entweder nach wie vor Batterien oder Akkus erforderlich sind oder die bekannten Vorrichtungen, die ohne Batterien oder Akkus betrieben werden, nicht bei sehr kleinen elektrischen Geräten wie Fernbedienungen, Taschenrechnern etc., einsetzbar sind, die lediglich durch Fingerdruck betätigt werden.A disadvantage of this prior art is that batteries or rechargeable batteries are still required for the energy supply, or the known devices, which are operated without batteries or rechargeable batteries, cannot be used with very small electrical devices such as remote controls, pocket calculators, etc. which are only operated by finger pressure.
Der Erfindung liegt von daher die Aufgabe zugrunde, ein Verfahren bzw. eine Vorrichtung zur Erzeugung von elek- trischer Energie für den Betrieb elektrischer Kleingerate zu schaffen, bei dem bzw. der die Notwendigkeit einer Batterie, eines Akkus oder Superkondensators weitgehend oder vollständig entfällt.The invention is therefore based on the object of providing a method and a device for generating electrical energy for the operation of small electrical devices in which the need for a battery, rechargeable battery or supercapacitor is largely or completely eliminated.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruches 1 bzw. 7 gelbst. Vorteilhafte Ausfuh¬ rungsformen der Erfindung sind in den weiteren Ansprüchen beschrieben.This object is achieved by the features of claims 1 and 7 respectively. Advantageous embodiments of the invention are described in the further claims.
Gemäß dem erfindungsgemaßen Verfahren wird die zum Betrieb des elektrischen Kleingerates erforderliche elektrische Energie zumindest teilweise aus der zur manuellen Betäti¬ gung des Funktionsausloseelements verwendeten Energie gewonnen. Besteht beispielsweise das elektrische Kleinge- rat aus einer TV-Fernbedienung, können einige oder alle Funktionstasten, beispielsweise Kanalauswähltasten, so beschaffen sein, daß durch Drücken einer dieser Funktions¬ tasten gleichzeitig die erforderliche Energie für den Sendeimpuls erzeugt wird. Es ist somit von Bedeutung, daß bei dem erfindungsgemäßen Verfahren keine extra Hebel-, Pump- oder Kurbelbetatigung zur Erzeugung einer Energie erforderlich ist, sondern daß das Funktionsausloseelement selbst, beispielsweise eine Kanalauswahltaste, zur Ener- gieerzeugung verwendet wird.According to the inventive method the force required for operation of the electrical small APPARATE electric power is generated at least partially from the supply for manual Actuate the ¬ Funktionsausloseelements of the energy used. For example, is there a small electrical advice from a TV remote control, some or all of the function keys, for example channel selection keys, can be such that the required energy for the transmission pulse is generated simultaneously by pressing one of these function keys. It is therefore important that no extra lever, pump or crank actuation is required to generate energy in the method according to the invention, but that the function activation element itself, for example a channel selection button, is used to generate energy.
Erfindungsgemäß ist es auch möglich, daß durch Betatigen des Funktionsausloselements, beispielsweise einer Druckta¬ ste, eine mechanische Verformung des elektrischen Kleinge- rates an anderer Stelle, beispielsweise am Boden, auftritt und diese mechanische Verformung zur Erzeugung der elek¬ trischen Energie verwendet wird.According to the invention, it is also possible that by actuating the function triggering element, for example a push button, mechanical deformation of the small electrical device occurs elsewhere, for example on the floor, and this mechanical deformation is used to generate the electrical energy.
Das erfindungsgemaß gespeiste Gerät kann in der Regel eine ganze Anzahl von Funktionsauslöseelementen aufweisen, wie dies beispielsweise bei Fernbedienungen, Taschenrechnern oder Computertastaturen der Fall ist. Hierbei ist es mög¬ lich, daß jedes Funktionsausloseelement zur Wandlung der mechanischen Energie in elektrische Energie dienen kann. Bei einer Fernseh-Fernbedienung können somit z. B. die Tasten für Kanalwahl, Stummschaltung, Uhr-Einblenden, "Ein/Aus" zugleich auch Betätigungsorgane für den mecha¬ nisch/elektrischen Wandler (Generator) sein. Für kontinu¬ ierlich variable Einstellungen, wie Lautstarke, Hellig- keit, Farbsattigung etc. kann es allerdings erforderlich sind, pro Auf- oder Abwartsschritt jedesmal eine Druckbe¬ wegung auszufuhren. Dies ist jedoch ohne weiteres möglich, da die notwendige Tastenkraft sehr gering ist. Zudem konn¬ te durch eine geeignete Programmierung auch ein An- oder Abschwellen realisiert werden. Bei einem Taschenrechner, der nur einen sehr geringen Strombedarf hat, wurde es dagegen in der Regel ausreichen, lediglich zwei Tasten mit dem Generator zu koppeln, beispielsweise die Einschalt- und die "=" oder "Enter-Taste".The device fed according to the invention can generally have a whole number of function triggering elements, as is the case, for example, with remote controls, pocket calculators or computer keyboards. It is possible here that each function release element can serve to convert the mechanical energy into electrical energy. With a television remote control z. B. the buttons for channel selection, muting, clock fade in, "on / off" can also be actuators for the mechanical / electrical converter (generator). For continuously variable settings, such as volume, brightness, color saturation etc., however, it may be necessary to carry out a printing movement each time up or down. However, this is easily possible, since the key force required is very low. In addition, by means of suitable programming, a connection or Decongestants can be realized. On the other hand, for a pocket calculator that only has a very low power requirement, it would usually be sufficient to couple only two keys to the generator, for example the switch-on and the "=" or "Enter key".
Ein weiterer Anwendungsbereich der Erfindung liegt im Installationsbereich von infrarot-angesteuerten Lampen. So kann ein als Infrarotsender wirkender Schalter ohne zusatzliche Verkabelung oder Einsatz von Batterien an der Wand oder an Mobeistücken befestigt werden, um ferngesteu¬ ert beispielsweise eine Deckenlampe ein- und ausschalten zu können.Another area of application of the invention is in the installation area of infrared-controlled lamps. Thus, a switch acting as an infrared transmitter can be attached to the wall or to pieces of furniture without additional cabling or the use of batteries in order to be able to switch a ceiling lamp on and off remotely, for example.
Das erfindungsgemaße Verfahren bietet somit den besonderen Vorteil, daß Batterien zur Stromversorgung von elektri¬ schen Kleingeraten entweder weitgehend oder vollkommen entfallen können, wodurch die Umweltbelastung durch Batte¬ rien verringert wird. Weiterhin ist das erfindungsgemaße Verfahren im Gegensatz zur Stromversorgung mit Solarzellen tageslichtunabhangig. Von besonderem Vorteil ist weiter¬ hin, daß die zum Betrieb des elektrischen Kleingeräts erforderliche Energie bei Betätigung der Funktionsaus- losetaste sofort zur Verfugung steht und ein sog. "Kalt- start" ohne vorheriges Aufladen eines Kondensators möglich ist. Mit dem erfindungsgemaßen Verfahren laßt sich ferner eine kostengünstige Alternative oder Ergänzung zu batte¬ riebetriebenen Systemen realisieren. Hierbei ist empfan- gerseitig in der Regel keine Änderung erforderlich, so daß einfache Nachrustmöglichkeiten gegeben sind.The method according to the invention thus offers the particular advantage that batteries for the power supply of small electrical devices can either be largely or completely eliminated, as a result of which the environmental impact of batteries is reduced. Furthermore, in contrast to the power supply with solar cells, the method according to the invention is independent of daylight. It is also of particular advantage that the energy required to operate the small electrical device is immediately available when the function trigger button is pressed, and a so-called "cold start" is possible without first charging a capacitor. With the method according to the invention, a cost-effective alternative or supplement to battery-operated systems can also be realized. In this case, no change is generally required on the receiver side, so that simple retrofitting options are available.
Gemäß einer vorteilhaften Ausfuhrungsform der Erfindung wird durch die manuelle Betätigung des Funktionsauslosee- lements ein Energiespeicher geladen, dessen gespeicherte Energie zum Betrieb des elektrischen Kleingerats verwendet wird. Bei einem derartigen Energiespeicher kann es sich um eine Schwingfeder, beispielsweise in Form eines schwingen¬ den Ankers, oder um ein Miniaturschwungrad handeln, das durch die Betätigung des Funktionsausloseelements in Schwingung gebracht wird.According to an advantageous embodiment of the invention, an energy store, the stored one, is loaded by the manual actuation of the function triggering element Energy is used to operate the small electrical device. Such an energy store can be an oscillating spring, for example in the form of an oscillating armature, or a miniature flywheel which is caused to oscillate by actuating the function-releasing element.
Insbesondere bei Fernbedienungen ist es vorteilhaft, wenn für die Ausstrahlung des Sendesignals eine möglichst kon- stante, maximale Amplitude pro Sendepuls vorliegt. Gemäß einer vorteilhaften Ausführungsform der Erfindung wird daher mittels der vom Energiespeicher abgegebenen Energie eine elektrische Energie mit einer innerhalb einer vor¬ bestimmten Zeitdauer zumindest im wesentlichen konstanten Abgabeleistungen erzeugt.In the case of remote controls in particular, it is advantageous if the maximum possible amplitude for the transmission of the transmission signal is constant per transmission pulse. According to an advantageous embodiment of the invention, therefore, an electrical energy with an output power which is at least substantially constant within a predetermined period of time is generated by means of the energy delivered by the energy store.
Vorteilhafterweise wird die zum Betrieb des elekrischen Klemgerates erforderliche elektrische Energie aus der bei einmaliger manueller Betätigung des Funktionsausloseele- ments aufgebrachten Energie gewonnen. Dies- bedeutet bei¬ spielsweise, daß em einmaliges Betatigen mittels eines Fingers genügt, um die zum Ausfuhren der Schaltfunktion erforderliche elektrische Energie zu erzeugen. Dagegen ist ein Drucken mit der ganzen Hand oder ein "Pumpen", also em wiederholtes Drucken einer Funktionstaste, nicht er¬ forderlich.Advantageously, the electrical energy required to operate the electrical clamping device is obtained from the energy applied with a single manual actuation of the function activation element. This means, for example, that a single actuation by means of a finger is sufficient to generate the electrical energy required to perform the switching function. On the other hand, printing with the whole hand or "pumping", ie repeated printing of a function key, is not necessary.
Gemäß einer vorteilhaften Ausführungsform wird durch die manuelle Betätigung des Funktionsausloseelements em Dau- ermagnet in Schwingung versetzt und an einem mit einer Spule umwickelten Eisenkern vorbeigefuhrt.According to an advantageous embodiment, manual actuation of the function-releasing element causes a permanent magnet to vibrate and is guided past an iron core wrapped in a coil.
Bei der erfindungsgemaßen Vorrichtung zur Durchfuhrung des erwähnten Verfahrens besteht die Spannungsquelle aus einem durch die manuelle Betätigung des Funktionsausloseelements mit Bewegungsenergie versorgten mechanisch/elektrischen Wandler (Generator) .In the device according to the invention for carrying out the method mentioned, the voltage source consists of a mechanical / electrical converter (generator) supplied with kinetic energy by manual actuation of the function release element.
Gemäß einer vorteilhaften Ausführungsform weist der Gene¬ rator mindestens einen mit einem Stator (Anker) und einer Spule zusammenwirkenden Dauermagneten auf, der in Schwin¬ gung oder in eine Rotationsbewegung versetzbar ist.According to an advantageous embodiment, the generator has at least one permanent magnet which interacts with a stator (armature) and a coil and which can be set in vibration or in a rotational movement.
Zweckmäßigerweise ist der Dauermagnet auf einer am Stator befestigten Schwingfeder angeordnet, die mittels einer auslenkbaren Auslösefeder in Schwingung versetztbar ist.The permanent magnet is expediently arranged on an oscillating spring attached to the stator, which can be set into vibration by means of a deflectable release spring.
Die Erfindung wird nachfolgend anhand der Zeichnung bei- spielshaft näher erläutert. In dieser zeigen:The invention is explained in more detail below with reference to the drawing. In this show:
Figur la : eine perspektivische Ansicht des erfin¬ dungsgemäßen Generators,FIG. 1a: a perspective view of the generator according to the invention,
Figur lb : eine alternative Ausführungsform der ma¬ gnetischen Struktur von Figur la,Figure lb: an alternative embodiment of the magnetic structure of Figure la,
Figur lc : eine ausschnittsweise dargestellte Seiten¬ ansicht der magnetischen Struktur von Fi- gur lb mit zusätzlicher Auslösefeder,FIG. 1 c shows a side view of the magnetic structure of FIG. 1 b, shown in detail, with an additional release spring,
Figur 2 : eine perspektivische, teilweise freige¬ schnittene Ansicht einer Infrarot-Fernbe¬ dienung für beispielsweise Fernseh- oder Rundfunkgeräte, mit eingebauter erfin¬ dungsgemäßer Vorrichtung,FIG. 2: a perspective, partially cutaway view of an infrared remote control for, for example, television or radio devices, with a built-in device according to the invention,
Figur 3 : eine perspektivische, teilweise freige¬ schnittene Ansicht eines Schlüssels mit eingebauter erfindungsgemaßer Vorrichtung,Figure 3 is a perspective, partially cutaway view of a key with built-in device according to the invention,
Figur 4a : eine graphische Darstellung des im Genera¬ tor bei ohmscher Last fließenden Stroms, der bei Betätigung eines Funktionsauslo¬ seelements und Aussenden einer Steuer- Pulsfolge auftritt,FIG. 4a: a graphic representation of the current flowing in the generator with an ohmic load, which occurs when a function triggering element is actuated and a control pulse sequence is emitted,
Figur 4b : die an einem Speicherkondensator auftre- tende Spannung,FIG. 4b: the voltage occurring at a storage capacitor,
Figur 4c : die in ihrer Breite modulierten Sendepul¬ se, undFigure 4c: the width modulated transmit pulses, and
Figur 5 : em Schaltbild einer m Zusammenhang mit der erfindungsgemaßen Vorrichtung verwen¬ deten Steuerelektronik.FIG. 5: a circuit diagram of control electronics used in connection with the device according to the invention.
Aus Figur la ist em zur Erzeugung elektrischer Energie verwendeter Generator 10 ersichtlich, der im wesentlichen einen U-formigen Stator 11, eine um einen Statorschenkel gewickelte längliche Spule 12 mit Anschlußleitungen 16 sowie eine Schwingfeder 13 umfaßt, auf deren Ober- und Unterseite jeweils em Dauermagnet 14 bzw. 15 befestigt ist. Die beiden Anschlußleitungen 16 sind mit einer Steu¬ erelektronik 32 verbunden.From Figure la em used to generate electrical energy generator 10 can be seen, which essentially comprises a U-shaped stator 11, an elongated coil wound around a stator leg with connecting lines 16 and a spring 13, on the top and bottom of each em permanent magnet 14 or 15 is attached. The two connecting lines 16 are connected to control electronics 32.
Die Schwingfeder 13 ist an ihrem einen Ende am querver¬ laufenden Verbmdungsschenkel des Stators 11 befestigt und erstreckt sich mittig zwischen den Langsschenkeln über die gesamte Lange des Stators 11. In ihrem vorderen freien Endbereich ist die Schwingfeder 13 mit geringem seitlichen Abstand zwischen den freien Enden oder Klauen lla des Stators 11 hindurchgefuhrt. Die beiden Dauermagnete 14, 15 haben eine Länge, die der Breite der Schwingfeder 13 entspricht, und sind derart auf der Schwingfeder 13 angeordnet, daß sie ebenfalls mit geringem seitlichen Abstand an den zueinander weisenden Stirnflächen der Klauen lla des Stators 11 vorbeigeführt werden können. Der oben liegende Dauermagnet 14 weist einen zur unbewickelten Seite des Stators 11 weisenden Nordpol auf, während der untere Dauermagnet 15 umgekehrt gepolt ist.The oscillating spring 13 is fastened at one end to the transverse connecting leg of the stator 11 and extends centrally between the longitudinal legs over the entire length of the stator 11. In its front free end region, the oscillating spring 13 is at a small lateral distance between the free ends or Claws lla of the stator 11 passed. The two permanent magnets 14, 15 have a length which corresponds to the width of the oscillating spring 13 and are arranged on the oscillating spring 13 in such a way that they can also be guided past the mutually facing end faces of the claws 11a of the stator 11 with a small lateral distance. The permanent magnet 14 located above has a north pole facing the unwound side of the stator 11, while the lower permanent magnet 15 is reversed.
Wird bei der beschriebenen Anordnung die Schwingfeder 13 durch einmaliges Auslenken in Bewegung versetzt, so ent¬ steht eine abklingende mechanische Schwingung, wobei ab¬ wechselnd der obere Dauermagnet 14 und der untere Dauer- magnet 15 zwischen die beiden Klauen lla des Stators 11 tritt. Durch diese Bewegung der Dauermagnete 14, 15 wird eine ebenfalls abklingende elektrische Schwingung in der Spule 12 induziert.If, in the arrangement described, the oscillating spring 13 is set in motion by a single deflection, then a decaying mechanical oscillation arises, the upper permanent magnet 14 and the lower permanent magnet 15 alternately stepping between the two claws 11a of the stator 11. This movement of the permanent magnets 14, 15 induces an also decaying electrical oscillation in the coil 12.
Die elektrische Weiterverarbeitung der induzierten Span¬ nung wird weiter unten erläutert.The electrical further processing of the induced voltage is explained further below.
Figur lb zeigt einen Ausschnitt einer alternativen Aus¬ führungsform eines erfindungsgemäßen Generators 10' , der wiederum einen U-förmigen Stator 11 sowie eine nicht dar¬ gestellte Spule aufweist. Anstelle der zwei entgegenge¬ setzt polarisierten Magneten 14, 15 ist hier jedoch ein einzelner Dauermagnet 20 vorgesehen, der entlang der Langsachse der Schwingfeder 13 polarisiert ist. Mit diesem Dauermagneten 20 sind zwei als Doppelkeil ausgebildete Polschuhe 21, 22 fest verbunden. Diese Polschuhe 21, 22 leiten den Fluß derart, daß mit dem einzigen Dauermagneten 20 die gleiche Geometrie erreicht wird wie mit der An¬ ordnung von Fig. la. Die Kombination Dauermagnet 20 / Polschuhe 21, 22 ist ihrerseits starr mit der Schwingfeder 13 verbunden. Wird die Schwmgfeder 13 durch ein einmali¬ ges Betatigen eines nicht dargestellten Funktionsauslosee¬ lements in Schwingung versetzt, fuhrt die Schwingfeder 13 zusammen mit dem Dauermagneten 20 und den Polschuhen 21, 22 wiederum eine abklingende mechanische Schwingung aus, welche in der Spule 12 eine entsprechende elektrische Schwingung erzeugt.FIG. 1b shows a section of an alternative embodiment of a generator 10 'according to the invention, which in turn has a U-shaped stator 11 and a coil (not shown). Instead of the two oppositely polarized magnets 14, 15, however, a single permanent magnet 20 is provided here, which is polarized along the longitudinal axis of the oscillating spring 13. With this permanent magnet 20 two pole shoes 21, 22 designed as double wedges are firmly connected. These pole shoes 21, 22 guide the flow in such a way that the same geometry is achieved with the single permanent magnet 20 as with the arrangement of FIG. The combination permanent magnet 20 / Pole shoes 21, 22 are in turn rigidly connected to the oscillating spring 13. If the vibration spring 13 is set in vibration by a single actuation of a function release element (not shown), the vibration spring 13 together with the permanent magnet 20 and the pole pieces 21, 22 in turn carries out a decaying mechanical vibration, which in the coil 12 has a corresponding electrical Generates vibration.
Der m Figur lb gezeigte Generator 10' bietet den Vorteil, daß die Kombination aus Dauermagnet 20 und Polschuhen 21, 22 zusammen mit einem Joch 23 als Haftvorrichtung verwen¬ det werden kann, wie m Figur lc gezeigt ist. Wird die Auslosefeder 24 aus ihrer gezeichneten Ruhelage nach oben gedruckt, so werden der Dauermagnet 20 und die Polschuhe 21, 22 aufgrund der Haltekraft des Dauermagneten 20 so lange folgen und dabei die Schwingfeder elastisch aus¬ lenken, bis die Losbrechkraft erreicht ist. Das Joch 23 ist auf der Auslosefeder 24 kippbar befestigt, so daß es sich bis zum Losbrechen satt an die Polschuhe 21, 22 an¬ legt. Nach dem Losbrechen von der Auslosefeder 24 ist die Schwmgfeder 13 kurzzeitig frei, um sich in die besagte abklingende Schwingung zu versetzen. Diese Schwingung klingt nach ca. 200 msec ab. Da eine Funktionsauslosetaste und damit auch die zugeordnete Auslosefeder 24 durch den Finger m der Regel langer im gedruckten Zustand gehalten werden, wird die freie Schwingung der Schwmgfeder 13 wahrend der Schwingphase auch nicht durch die Auslosefeder 24 gestört. Diese Form der Auslosung zeichnet sich durch einfachen Aufbau, geringste Abnutzung und keinerlei tote Wege aus .The generator 10 'shown in FIG. 1b offers the advantage that the combination of permanent magnet 20 and pole shoes 21, 22 together with a yoke 23 can be used as an adhesive device, as shown in FIG. 1c. If the release spring 24 is pressed upwards from its drawn rest position, the permanent magnet 20 and the pole shoes 21, 22 will follow due to the holding force of the permanent magnet 20 and thereby deflect the oscillating spring elastically until the breakaway force is reached. The yoke 23 is fastened in a tiltable manner on the release spring 24, so that it fits snugly against the pole shoes 21, 22 until it breaks loose. After detaching from the release spring 24, the floating spring 13 is briefly free in order to put itself into said decaying vibration. This oscillation subsides after approx. 200 msec. Since a function release button and thus also the associated release spring 24 are generally held longer in the printed state by the finger m, the free oscillation of the vibration spring 13 is not disturbed by the release spring 24 during the oscillation phase. This form of drawing is characterized by simple structure, minimal wear and no dead paths.
Die Auslosefeder 24 kann entweder direkt mit einer Druck¬ taste verbunden sein oder über einen Mechanismus indirekt betätigt werden. Sie stellt in beiden Fallen nach erfolg¬ ter Schwingung die mechanische Ausgangslage wieder her.The release spring 24 can either be connected directly to a push button or indirectly via a mechanism be operated. In both cases, it restores the mechanical starting position after the oscillation has taken place.
Figur 2 zeigt auszugsweise em elektrisches Kleingerat m Form einer Fernbedienung, wie sie beispielsweise bei Fernseh- oder Hifi-Geraten verwendet wird. Diese Fernbe¬ dienung weist em Gehäuse 30 und eine an der Oberseite des Gehäuses 30 angeordnete Tastatur 31 auf, die, als Print- platme ausgebildet, Trager für die Steuerelektronik 32 und eine Infrarot-Sendediode 33 ist. In Figur 2 sind für die Steuerelektronik 32 lediglich exemplarisch einige elektronische Bauelemente innerhalb des gestrichelt einge¬ zeichneten Teils dargestellt, die in Wirklichkeit jedoch nicht sichtbar sind und sich innerhalb des Gehäuses 30 befinden. An der Unterseite der Tastatur 31 befinden sich m üblicher Weise Funktionsausloseelemente in der Form von Tasten 34, die durch Fingerdruck manuell betätigt werden können. Ferner ist die Tastatur 31 innerhalb einer um¬ laufenden Nut 38, welche sich an der Innenseite der Sei- tenwangen des Gehäuses 30 befindet, vertikal beweglich montiert .FIG. 2 shows excerpts of a small electrical device in the form of a remote control, as used, for example, in television or hi-fi devices. This remote control has a housing 30 and a keyboard 31 arranged on the top of the housing 30, which, designed as a printed circuit board, is a carrier for the control electronics 32 and an infrared transmitter diode 33. In FIG. 2, some electronic components within the part shown in dashed lines are only shown as examples for the control electronics 32, but in reality they are not visible and are located within the housing 30. On the underside of the keyboard 31 there are function-releasing elements in the form of keys 34, which can be operated manually by finger pressure. Furthermore, the keyboard 31 is mounted so that it can move vertically within a circumferential groove 38 which is located on the inside of the side cheeks of the housing 30.
Wird eine der Tasten 34 gedruckt, verbindet ein elektri¬ scher Kontakt 35 eine horizontale Leiterbahn 36 mit einer vertikalen Leiterbahn 37. Hierdurch laßt sich, sobald die Steuerelektronik 32 gespeist ist, in bekannter Weise die gedruckte Taste 34 identifizieren. Weiterhin wird durch den Fingerdruck auf die Taste 34 die gesamte Tastatur 31 in der Fuhrungsnut 38 nach unten gedruckt. Diese vertikale Bewegung der Tastatur 31 wird über zwei plattenartige, horizontale Wippen 41, 42 auf die Auslosefeder 24 des innerhalb des Gehäuses 30 angeordneten Generators 10' übertragen. Diese Wippen 41, 42 erstrecken sich seitlich nach außen bis in den Bereich der Seitenwangen des Gehau- ses 30 und liegen in einem weiter innenliegenden Bereich auf Auflageschienen 39 auf, die sich in einem bestimmten Abstand parallel zu den Seitenwangen vom Boden des Gehäu¬ ses 30 aus nach oben erstrecken. Beim Niederdrucken der Tastatur 31 werden auch die beiden Wippen 41, 42 über seitliche Wangen 31a, die an der Unterseite der Tastatur 31 im seitenwangennahen Bereich befestigt sind, nach unten gedruckt und die hierdurch bewirkte Kippbewegung der Wip¬ pen 41, 42 um die Auflageschienen 39 hat em Hochheben von nach innen geführten Wippenarmen 41a, 42a zur Folge, wel¬ che mit einem Teil ihrer aufeinander zu gerichteten End¬ bereiche das freie Ende der Auslosefeder 24 untergreifen und diese hochheben. Die Anordnung ist dabei so ausgelegt, daß beim Betatigen jeder Taste 34 stets eine annähernd gleiche Kraft und eine annähernd gleiche Verschiebung auftreten. Der ausgeloste Funktionsabiauf - elastisches Verbiegen der Schwmgfeder 13 bis zum Losbrechen, gefolgt von abklingender Schwingung - ist mit dem anhand von Figur lc beschriebenen Funktionsablauf identisch. Ebenso wird beim Loslassen die Tastatur 31 über die Auslosefeder 24 und die Wippen 41, 42 wieder in die Ruhelage zurückge¬ stellt.If one of the buttons 34 is printed, an electrical contact 35 connects a horizontal conductor track 36 to a vertical conductor track 37. As a result, as soon as the control electronics 32 are supplied, the printed button 34 can be identified in a known manner. Furthermore, the entire keyboard 31 is printed downward in the guide groove 38 by the finger pressure on the key 34. This vertical movement of the keyboard 31 is transmitted via two plate-like, horizontal rockers 41, 42 to the release spring 24 of the generator 10 'arranged inside the housing 30. These rockers 41, 42 extend laterally outwards into the region of the side cheeks of the housing. ses 30 and lie in a further inner area on support rails 39 which extend at a certain distance parallel to the side cheeks from the bottom of the housing 30 upwards. When the keyboard 31 is pressed down, the two rockers 41, 42 are also pressed downwards via side cheeks 31a, which are fastened to the underside of the keyboard 31 in the area near the side cheeks, and the tilting movement of the rockers 41, 42 caused thereby about the support rails 39 has the result that inward rocker arms 41a, 42a are lifted, which, with part of their end regions directed towards one another, reach under the free end of the release spring 24 and lift it up. The arrangement is designed such that when each key 34 is actuated, approximately the same force and approximately the same displacement always occur. The triggered functional sequence - elastic bending of the floating spring 13 until it breaks loose, followed by decaying vibration - is identical to the functional sequence described with reference to FIG. 1c. Likewise, when released, the keyboard 31 is returned to the rest position via the release spring 24 and the rockers 41, 42.
Figur 3 zeigt eine weitere Verwendung der erfmdungsgema- ßen Vorrichtung anhand eines Schlusseis, beispielsweise Autoschlussels, welcher über eine Infrarot-Sendeemπch- tung eine nicht dargestellte Empfangereinrichtung, bei¬ spielsweise ein automatisches Verriegelungssystem oder eine elektronische Wegfahrsperre für em Auto, ansteuern kann.FIG. 3 shows a further use of the device according to the invention on the basis of a key, for example a car key, which can control a receiver device (not shown), for example an automatic locking system or an electronic immobilizer for a car, via an infrared transmission device.
Wie ersichtlich, sind der Generator 10', die Steuerelek¬ tronik 32 und die Sendediode 33 in einen Schlusselgriff 51 eingebaut. Die Hauptebene des U-formigen Stators 11 ver- läuft hierbei im wesentlichen vertikal. Die Auslösefeder 24 wird durch eine einzelne Taste 52 direkt betätigt, wodurch die Schwingfeder 13 und damit der Dauermagnet 20 in horizontaler Richtung zu schwingen beginnen. Sobald in der Spule 12 Strom zu fließen beginnt, lauft die Steuer¬ elektronik 32 an und sendet eine kodierte Infrarot-Puls¬ folge.As can be seen, the generator 10 ', the control electronics 32 and the transmitter diode 33 are installed in a key handle 51. The main plane of the U-shaped stator 11 ver runs essentially vertically. The trigger spring 24 is actuated directly by a single button 52, whereby the oscillating spring 13 and thus the permanent magnet 20 begin to oscillate in the horizontal direction. As soon as current begins to flow in the coil 12, the control electronics 32 start up and send a coded infrared pulse sequence.
In Figur 4a ist die in der Spule 12 induzierte Spannung bei ohmscher Last dargestellt, wenn die Schwingfeder 13 bzw. die Dauermagneten 14, 15, 20 die erwähnte abklingende Schwingung ausführen. Das Spannungssignal entspricht einer exponentiell abklingenden Schwingung. Dadurch, daß die Amplitude anfänglich hoch ist, kann durch geeignete Wahl der Dicke der Magnete 14, 15 bzw. 20 oder der Polschuhe 21, 22 folgende Feinheit erreicht werden: Die induzierte Spannung weist anfänglich die Form von Halbwellen 61 auf, die kürzer dauern als eine halbe Periode der Schwingfre¬ quenz. Dadurch wird trotz großer Amplitude ein verringer- ter Strom abgegeben und die mechanische Schwingung weniger gedämpft. In der zweiten Abklingphase treten dann normale Sinus-Halbwellen 62 auf, was für einen teilweisen Aus¬ gleich der zu jeder Phase vom Generator 10, 10' abgegebe¬ nen Leistung führt.FIG. 4a shows the voltage induced in the coil 12 with an ohmic load when the oscillating spring 13 or the permanent magnets 14, 15, 20 execute the abating oscillation mentioned. The voltage signal corresponds to an exponentially decaying oscillation. Because the amplitude is initially high, the following fineness can be achieved by a suitable choice of the thickness of the magnets 14, 15 or 20 or of the pole shoes 21, 22: The induced voltage initially has the form of half-waves 61 which are shorter than half a period of the oscillation frequency. As a result, a reduced current is emitted despite the large amplitude and the mechanical vibration is less damped. Normal sine half-waves 62 then occur in the second decay phase, which leads to a partial compensation of the power output by the generator 10, 10 'for each phase.
Eine weitere Möglichkeit, eine möglichst konstante Abgabe¬ leistung zu erhalten, besteht in geeignetem Abschrägen oder Zuspitzen der Magnete 14, 15 oder der Polschuhe 21, 22.A further possibility of obtaining a constant output power is to suitably bevel or sharpen the magnets 14, 15 or the pole pieces 21, 22.
Der Wunsch nach möglichst konstanter Abgabeleistung hat folgenden Grund: Ziel ist es, den größtmöglichen Teil der mechanischen Energie in elektrische Energie umzuwandeln und diese auch wirkungsvoll in Sende-Pulpakete zu nutzen. Wurde nicht die momentane Leistung ausgeglichen, sondern lediglich eine große Speicherkapazität geladen, hatte dies zur Folge, daß dann, wenn die Spannung an dieser Kapazität unter den zum Betrieb notwendigen Wert gefallen ist, noch eine großen Energie gespeichert, aber nicht nutzbar wäre.The reason why the output is as constant as possible has the following reason: The aim is to convert as much of the mechanical energy as possible into electrical energy and to use it effectively in sending pulp packets. If the current output was not compensated for, but only a large storage capacity was loaded, the result was that if the voltage at this capacity fell below the value required for operation, a large amount of energy would still be stored but would not be usable.
In Figur 4b ist der Spannungsverlauf an einem angemessenen Speicherkondensator dargestellt. Der Speicherkondensator wird im Ausführungsbeispiel durch die Serienschaltung von Kondensatoren 73, 74 gebildet, die aus Figur 5 ersichtlich sind. Das gestrichelte Rechteck stellt die ausgenutzte Energie dar.FIG. 4b shows the voltage curve on an appropriate storage capacitor. In the exemplary embodiment, the storage capacitor is formed by the series connection of capacitors 73, 74, which can be seen in FIG. 5. The dashed rectangle represents the energy used.
Anhand von Figur 4c wird eine Möglichkeit erläutert, wie die vom Generator 10, 10' abgegebene Leistung über eine vorbestimmte Zeitdauer konstant gehalten werden kann. Dies ist erwünscht, da, wie bereits ausgeführt, für die Aus¬ strahlung eines Sendesignals eine möglichst konstante, große Amplitude pro Sendepuls erforderlich ist. Das Ver- fahren gemäß Figur 4c stellt neben einer geeigneten Aus¬ legung der Schwmgfeder/Statσr-Geometrie eine zusätzliche Methode dar, trotz abklingender mechanischer Amplitude über einen weiten Bereich eine konstante elektrische Am¬ plitude zu erhalten.FIG. 4c explains one possibility of how the power output by the generator 10, 10 'can be kept constant over a predetermined period of time. This is desirable because, as already stated, the largest possible constant amplitude per transmission pulse is required for the transmission of a transmission signal. The method according to FIG. 4c, in addition to a suitable design of the spongy spring / stator geometry, represents an additional method of maintaining a constant electrical amplitude over a wide range despite the decaying mechanical amplitude.
Bei diesem Verfahren wird die pro Sendepuls abgegebene Energie durch eine Pulsbreitenmodulation konstant gehal¬ ten. Der Grund für dieses Verfahren ist, daß der Strom und damit die ausgestrahlte Leistung einer Infrarot-Diode mit der angelegten Spannung rapide zunimmt. Da die verfugbare Spannung sich nicht konstant halten laßt, muß der Energie- ausgleich über die Pulsdauer geschehen. Dies ist m Figur 4c angedeutet. Die Pulsbreite muß dabei beinahe umgekehrt proportional zum Quadrat der Spannung moduliert werden. Es ist deshalb zweckmäßig, den Ausgleich des Energieflusses sowohl durch geeignete geometrische/mechanische als auch durch elektronische Mittel durchzufuhren.In this method, the energy emitted per transmission pulse is kept constant by pulse width modulation. The reason for this method is that the current and thus the emitted power of an infrared diode increases rapidly with the voltage applied. Since the available voltage cannot be kept constant, the energy must be balanced over the pulse duration. This is indicated in FIG. 4c. The pulse width must be modulated almost inversely proportional to the square of the voltage. It It is therefore expedient to carry out the balancing of the energy flow using suitable geometric / mechanical as well as electronic means.
Auf der Empfangerseite befindet sich m der Regel eine Photodiode, die eine zeitliche Integration vornimmt. Hier¬ durch ergibt letztlich em kurzer, hoher Sendepuls und em längerer, niedrigerer Sendepuls dieselbe Spannung an der Photodiode.There is usually a photodiode on the receiver side, which carries out a temporal integration. As a result, a short, high transmit pulse and a longer, lower transmit pulse ultimately result in the same voltage at the photodiode.
Im Gegensatz zum erfindungsgemaßen Verfahren wurde ein Piezowandler beim stoßartigen Betatigen einer Taste diese mechanische Stoßenergie lediglich zu einer kurzen, schma¬ len elektrischen Leistungsspitze umwandeln, die sich nicht effizient in em Signal von gewisser Dauer und Konstanz der Amplitude umsetzen ließe. Bei dem erfindungsgemaßen Verfahren wird dagegen die mechanische Stoßenergie zu¬ nächst durch die Schwmgfeder 13 zwischengespeichert und durch die verschiedenen Maßnahmen m Form einer weitgehend konstanten Leistung abgegeben.In contrast to the method according to the invention, a piezoconverter would only convert this mechanical shock energy into a short, narrow electrical power peak when a button was pressed in a sudden manner, which could not be efficiently converted into a signal of a certain duration and constant amplitude. In the method according to the invention, on the other hand, the mechanical impact energy is first stored temporarily by the floating spring 13 and is emitted by the various measures in the form of a largely constant power.
In Figur 5 ist ein Schaltschema für die in Figur 2 dar¬ gestellte Infrarot-Fernbedienung gezeigt. Zentrales Ele¬ ment ist eine integrierte Schaltung 70, die vorteilhaft als Mikroprozessor ausgebildet ist. Mit dieser Schaltung 70 sind die Anschlüsse der einzelnen Tasten 34 in Matrix¬ anordnung verbunden. Mit dem Bezugszeichen 34 ist wiederum die in Figur 2 gezeigte Taste 34 bezeichnet, der die Lei¬ tungen 36, 37 zugeordnet sind. Der zur Schaltung 70 geho- rende Taktoszillator ist nicht extra dargestellt.FIG. 5 shows a circuit diagram for the infrared remote control shown in FIG. 2. The central element is an integrated circuit 70, which is advantageously designed as a microprocessor. The connections of the individual keys 34 are connected in a matrix arrangement to this circuit 70. Reference 34 again designates the button 34 shown in FIG. 2, to which the lines 36, 37 are assigned. The clock oscillator belonging to circuit 70 is not shown separately.
Das von der Spule 12 abgegebene Signal ladt durch zwei Dioden 71, 72 in Spannungsverdoppler-Anordnung zwei Kon¬ densatoren 73, 74. An der Kathode des Kondensators 74 liegt die Speisespannung, mit Verlauf gemäß Figur 4b, an der Schaltung 70 an. Die Infrarotdiode 33 wird durch einen MOS-Transistor 75 über das entsprechende Gatesignal ge¬ pulst. Die Leitung 76 wird zur Tπggerung des Zeitabiaufs in der Schaltung 70 verwendet.The signal output by the coil 12 invites by two diodes 71, 72 in the voltage doubler arrangement, two Kon ¬ capacitors 73, 74. At the cathode of the capacitor 74 4b, the supply voltage is applied to the circuit 70. The infrared diode 33 is pulsed by a MOS transistor 75 via the corresponding gate signal. Line 76 is used to reduce the timing in circuit 70.
Die Funktionsweise der Schaltung 70 gleicht den m bekann¬ ten, batteriebetriebenen Fernsteuerungen verwendeten ICs und wird daher nicht im Detail beschrieben.The mode of operation of the circuit 70 is similar to that of the known ICs used for battery-operated remote controls and is therefore not described in detail.
Es können weitgehend alle in der Fernbedienungstechnik bekannte Modulationsverfahren und Frequenzen verwendet werden, wobei beispielsweise jedes kodiertes Steuer-Puls¬ paket pro Tastendruck nur einmal ausgesendet wird.All modulation methods and frequencies known in remote control technology can be used to a large extent, for example each coded control pulse packet is only transmitted once per key press.
Alternativ zu den dargestellten Ausfuhrungsformen ist es auch möglich, als Energiezwischenspeicher nicht nur eine einzige Schwmgfeder 13, sondern einen Doppelschwinger vorzusehen, der aus zwei im Gegentakt oszillierenden Schwingfedern besteht. Eine derartige Ausbildung empfiehlt sich, wenn die Schwmgfeder nicht auf einer genügend gro¬ ßen Masse befestigt werden kann, beispielsweise bei der Anwendung in einem Autoschlussel. Hier wurde ansonsten die Vibration durch die externen Komponenten (Finger) sehr schnell gedampft werden. Em Doppelschwinger neutralisiert dagegen die Schwingungen durch interne Kopplung, so daß der Generator effizient bleibt.As an alternative to the illustrated embodiments, it is also possible to provide not only a single oscillation spring 13 as an energy intermediate store, but also a double oscillator, which consists of two oscillating springs oscillating in push-pull. Such a design is recommended if the spongy spring cannot be fastened to a sufficiently large mass, for example when used in a car key. Otherwise the vibration was damped very quickly by the external components (fingers). A double oscillator, on the other hand, neutralizes the vibrations through internal coupling so that the generator remains efficient.
Weiterhin ist es möglich, die Haftfunktion zwischen dem Dauermagneten 20 und der Auslosefeder 24 nicht von dem zur Felderzeugung benotigten Dauermagneten, sondern von einem hiervon getrennten Dauermagneten übernehmen zu lassen.Furthermore, it is possible to have the adhesive function between the permanent magnet 20 and the release spring 24 not be performed by the permanent magnet required for generating the field, but by a permanent magnet separate from it.
Weiterhin ist es möglich, die Steuerelektronik 32 mit einer sogenannten Zweikreis-Speisung zu versorgen. Auf der elektrischen Seite sind hierzu zwei Speisungssysteme vor¬ handen: das erste Speisungssystem dient zur Versorgung der leistungsarmen Steuerlogik, wobei die Spannung ca. 3 bis 5 Volt beträgt. Dieses erste System ist unmittelbar nach dem Auslösen der Schwingfeder 13 geladen. Hierdurch wird gewahrleistet, daß die Steuerelektronik 32 sofort mit der Tastenidentifikation beginnen kann und der erste Puls mit geringster Verzögerung ausgesendet wird.It is also possible to use the control electronics 32 a so-called dual-circuit supply. There are two supply systems on the electrical side for this purpose: the first supply system is used to supply the low-power control logic, the voltage being approximately 3 to 5 volts. This first system is loaded immediately after triggering the oscillating spring 13. This ensures that the control electronics 32 can immediately begin key identification and the first pulse is transmitted with the least delay.
Die zweite Speisung lädt einen größeren Kondensator und fuhrt höhere , Ströme um das Sendeelement (IR-Diode, Piezo- wandler) zu treiben.The second supply charges a larger capacitor and carries higher currents to drive the transmitting element (IR diode, piezo converter).
Alternativ zur direkten Betätigung der Schwingfeder 13 über eine manuell betätigbare Taste mittels Klinke oder Magnet oder zur indirekten Betätigung mittels der Aus¬ losefeder 24 kann die Schwingfeder 13 oder Auslösefeder 24 auch über ein Klinkenrad aktiviert werden. Dies ist ins- besondere immer dann zweckmäßig, wenn die Auslosung der Schwingfeder durch eine rotierende Bewegung oder Verschie¬ bung erfolgen soll. Auf diese Weise ist es beispielsweise möglich, ein Spielzeugauto durch einen Steuerknüppel in Geschwindigkeit und Fahrtrichtung fernzusteuern. Dabei werden am Steuerknüppel mit zwei einfachen Absolut-Winkel- gebern die X- und Y-Positionen abgenommen. Bei jeder Ver¬ änderung tritt ein Impuls auf, der die neue Position aus¬ sendet. Auf ähnliche Art läßt sich auch eine "schwanzlose Maus" realisieren. As an alternative to the direct actuation of the oscillating spring 13 by means of a manually operable button by means of a ratchet or magnet, or by indirect actuation by means of the release spring 24, the oscillating spring 13 or release spring 24 can also be activated by means of a ratchet wheel. This is particularly expedient whenever the oscillating spring is to be drawn by a rotating movement or displacement. In this way it is possible, for example, to control a toy car remotely in terms of speed and direction of travel using a joystick. The X and Y positions are removed from the joystick with two simple absolute angle encoders. With each change, a pulse occurs that sends the new position. A "tailless mouse" can also be realized in a similar way.

Claims

Ansprüche: Expectations:
1. Verfahren zur Erzeugung von elektrischer Energie für den Betrieb elektrischer Kleingerate wie Fernbedienungen,1. Method for generating electrical energy for the operation of small electrical devices such as remote controls,
Taschenrechner, Turoffner etc., bei denen mindestens eine Steuer- oder Schaltfunktion durch manuelle Betätigung eines Funktionsausloseelementes (34, 52), insbesondere einer Funktionstaste (34) oder eines Funktionsknopfes (52) , ausgelost wird, dadurch gekennzeichnet, daß die zum Betrieb des elektrischen Kleingerates erforderliche elek¬ trische Energie zumindest teilweise aus der zur manuellen Betätigung des Funktionsausloseelementes (34, 52) verwen¬ deten Energie gewonnen wird.Calculators, door openers etc., in which at least one control or switching function is triggered by manual actuation of a function triggering element (34, 52), in particular a function key (34) or a function button (52), characterized in that the for operating the electrical Small electrical equipment required electrical energy is at least partially obtained from the energy used for manual actuation of the function release element (34, 52).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die zum Betrieb des elektrischen Kleingerätes erforderli¬ che elektrische Energie aus der bei einmaliger manueller Betätigung, insbesondere beim einmaligen Drucken, des Funktionsausloseelementes (34, 52) aufgebrachten Energie gewonnen wird.2. The method according to claim 1, characterized in that the electrical energy required for the operation of the small electrical appliance is obtained from the energy applied in the case of a single manual actuation, in particular when printing once, of the function triggering element (34, 52).
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeich¬ net, daß durch die manuelle Betätigung des Funktionsaus- löseelements (34, 52) ein mechanischer Energiespeicher (13) geladen wird, dessen gespeicherte Energie zum Betrieb des elektrischen Kleingerätes verwendet wird.3. The method according to claim 1 or 2, characterized gekennzeich¬ net that by the manual actuation of the function Aus- Release element (34, 52), a mechanical energy store (13) is loaded, the stored energy is used to operate the small electrical device.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß mittels der vom Energiespeicher (13) abgegebenen mecha¬ nischen Energie eine elektrische Energie mit einer in¬ nerhalb einer vorbestimmten Zeitdauer zumindest im wesent¬ lichen konstanten Abgabeleistung erzeugt wird.4. The method according to claim 3, characterized in that by means of the mechanical energy emitted by the energy store (13) an electrical energy with a within a predetermined time period is generated at least substantially constant output power.
5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwischen den einzelnen Be¬ tätigungen des Funktionsausloseelementes (34, 52) keine Energie in einem elektrischen Speicherelement gehalten wird.5. The method according to any one of the preceding claims, characterized in that no energy is held in an electrical storage element between the individual actuations of the function release element (34, 52).
6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß nach dem Aufbringen der mecha¬ nischen Energie durch die manuelle Betätigung des Funk- tionsauslöseelements (34, 52) die Umwandlung in elektri¬ sche Energie und deren Abgabe unmittelbar anschließen, d. h. ohne zeitliche Verzögerung erfolgt.6. The method according to any one of the preceding claims, characterized in that after the application of the mechanical energy by the manual actuation of the function triggering element (34, 52) the conversion into electrical energy and its delivery directly connect, d. H. without delay.
7. Vorrichtung zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, mit mindestens einem manuell betätigbaren Funktionsausloseele¬ ment (34, 52) in der Form einer Funktionstaste (34), eines Funktionsknopfs (52) oder ähnlichem zum manuellen Auslösen einer Steuer- oder Schaltfunktion, einer Steuerelektronik (32) zum Aufbereiten der für die Steuer- oder Schaltfunktion erforderlichen elektrischen Signale und einer Spannungsquelle für die Energieversorgung, da¬ durch gekennzeichnet, daß die Spannungsquelle aus einem durch die manuelle Betätigung des Funktionsausloseelemen¬ tes (34, 52) mit Bewegungsenergie versorgten elektrischen Wandler (Generator) (10, 10') besteht.7. Device for carrying out the method according to one of the preceding claims, with at least one manually operable function release element (34, 52) in the form of a function key (34), a function button (52) or the like for manually triggering a control or switching function , control electronics (32) for processing the electrical signals required for the control or switching function and a voltage source for the energy supply, characterized in that the voltage source consists of a there is an electrical converter (generator) (10, 10 ') supplied with kinetic energy due to the manual actuation of the function release element (34, 52).
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Generator (10, 10') mindestens einen mit einem Stator (11) und einer Spule (12) zusammenwirkenden Dauer¬ magneten (14, 15, 20) aufweist, der in Schwingung oder in eine Rotationsbewegung versetzbar ist.8. The device according to claim 7, characterized in that the generator (10, 10 ') has at least one with a stator (11) and a coil (12) interacting permanent magnet (14, 15, 20) in vibration or can be set into a rotational movement.
9. Vorrichtung nach Anspruch 7 oder 8, dadurch gekenn¬ zeichnet, daß der Dauermagnet (14, 15, 20) auf einer am Stator (11) befestigten Schwingfeder (13) angeordnet ist.9. The device according to claim 7 or 8, characterized gekenn¬ characterized in that the permanent magnet (14, 15, 20) on a stator (11) attached to the oscillating spring (13) is arranged.
10. Vorrichtung nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß das Funktionsausloseelement aus einer Funktionstaste (34) besteht, die durch Fingerdruck be¬ tätigbar ist.10. Device according to one of claims 7 to 9, characterized in that the function release element consists of a function key (34) which can be actuated by finger pressure.
11. Vorrichtung nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß die Schwingfeder (13) mittels einer auslenkbaren Auslösefeder (24) in Schwingung versetzbar ist, die mit dem auf der Schwingfeder (13) angeordneten Dauermagneten (20) bis zu einer vorbestimmten Auslenkposi- tion der Schwingfeder (13) in Halteeingriff ist, die nach Überschreiten der Magnethaltekraft außer Eingriff mit der Auslenkfeder (24) gelangt.11. Device according to one of claims 7 to 10, characterized in that the oscillating spring (13) by means of a deflectable trigger spring (24) can be set in vibration, which with the arranged on the oscillating spring (13) permanent magnet (20) up to a predetermined Deflection position of the oscillating spring (13) is in holding engagement, which comes out of engagement with the deflecting spring (24) after the magnetic holding force has been exceeded.
12. Vorrichtung nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, daß das Funktionsausloseelement (34, 52) mit dem Generator (10, 10') mechanisch gekoppelt ist. 12. Device according to one of claims 7 to 11, characterized in that the function release element (34, 52) with the generator (10, 10 ') is mechanically coupled.
EP97923986A 1996-05-23 1997-05-22 Method and device for generating electrical energy for operating small electrical appliances Withdrawn EP0900467A1 (en)

Applications Claiming Priority (3)

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DE19620880A DE19620880A1 (en) 1996-05-23 1996-05-23 Method and device for generating electrical energy for operating small electrical appliances
DE19620880 1996-05-23
PCT/EP1997/002634 WO1997044883A1 (en) 1996-05-23 1997-05-22 Method and device for generating electrical energy for operating small electrical appliances

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EP0900467A1 true EP0900467A1 (en) 1999-03-10

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Also Published As

Publication number Publication date
WO1997044883A1 (en) 1997-11-27
DE19620880A1 (en) 1997-11-27
JP2000511037A (en) 2000-08-22
CN1219298A (en) 1999-06-09

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